Ultratwinkie said:
They sold the IP but licensed back the rights to develop and publish the MMO. They actually offered to sell the MMO rights to Bethesda too, but Bethesda declined, because that would cost them extra. So now they're trying to get these rights for free by claiming that all Interplay had rights to use was just the title, which is ridiculous.
Or good business sense.
Without specifics I can only speculate, but since the franchise itself was sold, and the MMO rights re-licensed to Interplay, what seems to have occurred does not actually match up with your description. Presumably Interplay had to pay a licensing fee to make the MMO, and the price of this license either was either reduced from the sale price of the franchise, or offset in some other way that made it attractive to Bethesda for Interplay to continue development. The licensing fee may even be nonrefundable.
So for Bethesda, the prospects work out like this:
1) They buy Fallout and get the profits that result from the games they develop/publish using that property.
2) Interplay pays Bethesda a license fee to make their MMO. If it comes out, great. It's possible Interplay would have to pay a percentage to Bethesda, which is even better.
3) If the game doesn't come out, Bethesda keeps the license fee and the rights revert.
4) If the game comes out, but sucks, there are no profits to share and the property's reputation is damaged. Bethesda may still get to keep the license fee, but this may not be fair compensation for the loss of a share of profits of a successful MMO, or for the indirect losses caused by releasing a bad game.
It seems clear to me from Bethesda's actions that they think #4 is the most likely scenario and are taking every possible action to prevent the game from being completed or released.
Would Bethesda offer the licensing fee back? Probably not, unless there's an obligation in the contract for it, and since they want to show that Interplay doesn't actually have, nor actually can have, a Fallout MMO, they probably don't feel returning the fee is warranted.
Would Interplay accept the refund if offered? Again, probably not. It probably isn't large enough to cover their costs to date, and it doesn't help them do what they want to do, which is make the Fallout MMO, which, if it were to be released and successful, would gain them profits, potentially future development deals, or at least give the principals a good chance to move on to other employment or projects.